US gun outside London attraction was a revolver? (7)
I believe the answer is:
rotated
'london attraction was a revolver?' is the definition.
I can't judge whether this definition defines the answer.
'us gun outside' is the wordplay.
'us' becomes 'tate' (I can't justify this - if you can you should believe this answer much more).
'gun' becomes 'rod' (rod is a kind of gun).
'outside' is an insertion indicator (some letters go outside others).
'tate' put inside 'rod' is 'ROTATED'.
Can you help me to learn more?
(Other definitions for rotated that I've seen before include "Turned in a circle around an axis" , "Revolved" , "Turner did?" , "took part in revolution" , "Went round" .)